Study math for long enough and you will likely have cursed Pythagoras's name, or said "praise be to Pythagoras" if you're a bit of a fan of triangles.
But while Pythagoras was an important historical figure in the development of mathematics, he did not figure out the equation most associated with him (a2 + b2 = c2). In fact, there is an ancient Babylonian tablet (by the catchy name of IM 67118) which uses the Pythagorean theorem to solve the length of a diagonal inside a rectangle. The tablet, likely used for teaching, dates from 1770 BCE – centuries before Pythagoras was born in around 570 BCE.
Now I don't have a problem with laziness, but when someone's laziness becomes disrespectful and rips people off, then I believe that we should try to do better. Or at least not expose our instance of choice to IPR liabilities.
Maybe I'm being a pedant. That we can argue, and I'll give you a head start by agreeing with you. But I refuse to believe that I'm also wrong.